Cab of a truck vehicle



FIG. 1 is a left, front perspective view of cab of a truck showing ournew design shown installed on a truck, it may be understood that thebroken lines are for illustrative purposes only and form no part of theclaimed design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a left side view thereof; and,

FIG. 6 is a right side view thereof.

The ornamental design for a cab of a truck vehicle, as shown anddescribed.